<!DOCTYPE html>
<html lang="zh">
	<head>
		<meta charset="utf-8">
		<link rel="stylesheet" href="style.css">
		<title>57 文字跑马灯按钮</title>
	</head>
	<body>
		<div class="app">
			<a href="javascript:;" class="abtn57">
				<div class="btn57">一个按钮</div>
				<span class="bg57">一个按钮</span>
			</a>
		</div>
	</body>
</html>